4028640

Names of 4028640

• Cardinal: 4028640 can be written as Four million, twenty-eight thousand, six hundred forty.

Scientific notation

• Scientific notation: 4.02864 × 10⁶

Factors of 4028640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 137

Divisors of 4028640

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 11 12 14 15 16 20 21 22 24 28 30 32 33 35 40 42 44 48 55 56 60 66 70 77 80 84 88 96 105 109 110 112 120 132 140 154 160 165 168 176 210 218 220 224 231 240 264 280 308 327 330 336 352 385 420 436 440 462 480 528 545 560 616 654 660 672 763 770 840 872 880 924 1056 1090 1120 1155 1199 1232 1308 1320 1526 1540 1635 1680 1744 1760 1848 2180 2289 2310 2398 2464 2616 2640 3052 3080 3270 3360 3488 3597 3696 3815 4360 4578 4620 4796 5232 5280 5995 6104 6160 6540 7194 7392 7630 8393 8720 9156 9240 9592 10464 11445 11990 12208 12320 13080 14388 15260 16786 17440 17985 18312 18480 19184 22890 23980 24416 25179 26160 28776 30520 33572 35970 36624 36960 38368 41965 45780 47960 50358 52320 57552 61040 67144 71940 73248 83930 91560 95920 100716 115104 122080 125895 134288 143880 167860 183120 191840 201432 251790 268576 287760 335720 366240 402864 503580 575520 671440 805728 1007160 1342880 2014320 4028640
• Sum of all divisors σ(n): 15966720
• Sum of proper divisors (its aliquot sum) s(n): 11938080
• 4028640 is an abundant number, because the sum of its proper divisors (11938080) is greater than itself. Its abundance is 7909440

Bases of 4028640

• Binary: 1111010111100011100000₂
• Hexadecimal: 0x3D78E0
• Base-36: 2ECIO

Squares and roots of 4028640

• 4028640 squared (4028640²) is 16229940249600
• 4028640 cubed (4028640³) is 65384586487148544000
• The square root of 4028640 is 2007.1472292785
• The cube root of 4028640 is 159.1180642825

Scales and comparisons

• 4,028,640 seconds is equal to 6 weeks, 4 days, 15 hours, 4 minutes.
• To count from 1 to 4,028,640 would take you about nine weeks!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 4028640 cubic inches would be around 13.3 feet tall.

Recreational maths with 4028640

• 4028640 backwards is 0468204
• 4028640 is a Harshad number.
• The number of decimal digits it has is: 7
• The sum of 4028640's digits is 24
• More coming soon!